1. Incazelo yefilimu yokwelula ye-PE
Ifilimu yokwelula ye-PE (eyaziwa nangokuthi i-stretch wrap) iyifilimu yepulasitiki enezakhiwo zokunamathela ezinganwetshwa futhi ziboshwe ngokuqinile ezimpahleni, kungaba ohlangothini olulodwa (extrusion) noma zombili izinhlangothi (eziphefumulayo). I-glue ayinamatheli ebusweni bezimpahla kodwa ihlala ebusweni befilimu. Ayidingi ukuncipha kokushisa ngesikhathi senqubo yokupakisha, okusiza ukonga amandla, ukunciphisa izindleko zokupakisha, ukwenza lula ukuthuthwa kwezitsha, nokuthuthukisa ukusebenza kahle kwempahla. Ukuhlanganiswa kwama-pallet nama-forklift kunciphisa izindleko zokuhamba, futhi ukucaca okuphezulu kwenza kube lula ukuhlonza izimpahla, kunciphisa amaphutha okusabalalisa.
Imininingwane: Ububanzi befilimu yomshini bungu-500mm, ububanzi befilimu esetshenziswa ngesandla bungu-300mm, 350mm, 450mm, 500mm, ubukhulu bungu-15um-50um, bungahlukaniswa ngemininingwane ehlukahlukene.
2. Ukuhlukaniswa kokusetshenziswa kwefilimu ye-PE Stretch
(1) Ifilimu Yokwelula Ngesandla:Le ndlela isebenzisa kakhulu ukupakishwa ngesandla, futhi ifilimu yokwelula ngesandla ngokuvamile inezidingo zekhwalithi ephansi. Umqulu ngamunye unesisindo esingaba ngu-4kg noma u-5kg ukuze kube lula ukusebenza.
(2) Ifilimu Yokwelula Umshini:Ifilimu yokwelula yomshini isetshenziselwa ukupakisha ngomshini, ikakhulukazi eqhutshwa ukuhamba kwezimpahla ukuze kufezwe ukupakisha. Idinga amandla aphezulu okubamba kanye nokunwebeka kwefilimu.
Izinga lokwelula elijwayelekile lingu-300%, kanti isisindo somqulu singama-15kg.
(3) Ifilimu Yokwelula Ngaphambi Komshini:Lolu hlobo lwefilimu yokwelula lusetshenziswa kakhulu ekupakisheni ngomshini. Ngesikhathi sokupakisha, umshini wokupakisha uqala ngokunweba ifilimu ibe yisilinganiso esithile bese uyisonga izimpahla ezizopakishwa. Uncike ekuqineni kwefilimu ukuze ipakishe izimpahla zihlangene. Umkhiqizo unamandla aphezulu okudonseka, ukunwebeka, kanye nokumelana nokubhoboza.
(4) Ifilimu Enemibala:Amafilimu okwelula anombala atholakala ngombala oluhlaza okwesibhakabhaka, obomvu, ophuzi, oluhlaza okotshani, nomnyama. Abakhiqizi bawasebenzisa ukupakisha izimpahla ngenkathi behlukanisa phakathi kwemikhiqizo ehlukene, okwenza kube lula ukubona izimpahla.
3.Ukulawulwa kokunamathela kwefilimu ye-PE Stretch
Ukunamathela okuhle kuqinisekisa ukuthi izendlalelo zangaphandle zefilimu yokupakisha ziyanamathelana, zihlinzeka ngokuvikelwa kobuso bemikhiqizo futhi zakhe ungqimba lwangaphandle oluvikelayo olulula oluzungeze imikhiqizo. Lokhu kusiza ukuvimbela uthuli, uwoyela, umswakama, amanzi kanye nokwebiwa. Okubalulekile, ukupakisha ifilimu yokwelula kusabalalisa ngokulinganayo amandla azungeze izinto ezipakishiwe, kuvimbele ukucindezeleka okungalingani okungadala umonakalo emikhiqizweni, okungenakwenzeka ngezindlela zokupakisha zendabuko ezifana nokubopha, ukubopha, kanye netheyiphu.
Izindlela zokufeza ukunamathela zifaka phakathi izinhlobo ezimbili: eyodwa ukufaka i-PIB noma i-master batch yayo ku-polymer, kanti enye ukuxuba ne-VLDPE.
(1) I-PIB iwuketshezi olucwebezelayo nolucwebezelayo. Ukwengeza okuqondile kudinga imishini ekhethekile noma ukuguqulwa kwemishini. Ngokuvamile, kusetshenziswa i-PIB masterbatch. I-PIB inenqubo yokufuduka, evame ukuthatha izinsuku ezintathu, futhi ithintwa yizinga lokushisa. Inamathela ngokuqinile emazingeni okushisa aphezulu kanye nokunamathela okuncane emazingeni okushisa aphansi. Ngemva kokwelula, ukunamathela kwayo kwehla kakhulu. Ngakho-ke, ifilimu eqediwe igcinwa kangcono ngaphakathi kwebanga elithile lokushisa (izinga lokushisa lokugcina elinconywayo: 15°C kuya ku-25°C).
(2) Ukuxuba ne-VLDPE kunokunamathela okuphansi kancane kodwa akudingi imishini ekhethekile. Ukunamathela kuzinzile, akunciphisi isikhathi, kodwa futhi kuthinteka yizinga lokushisa. Kunamathela kakhulu emazingeni okushisa angaphezu kuka-30°C futhi kunamathela kancane emazingeni okushisa angaphansi kuka-15°C. Ukulungisa inani le-LLDPE kungqimba lokunamathela kungafeza i-viscosity oyifunayo. Le ndlela ivame ukusetshenziselwa amafilimu e-co-extrusion anezingqimba ezintathu.
4. Izici ze-PE Stretch Film
(1) Ukuhlanganiswa: Lokhu kungenye yezici ezinkulu zokupakisha ifilimu yokwelula, okubopha imikhiqizo ngokuqinile ibe yiyunithi encane, eqinile, ngisho nangaphansi kwezimo ezimbi, okuvimbela noma yikuphi ukukhululeka noma ukuhlukaniswa kwemikhiqizo. Iphakheji ayinazo izinhlangothi ezibukhali noma ukunamathela, ngaleyo ndlela igwema umonakalo.
(2) Ukuvikelwa Okuyinhloko: Ukuvikelwa okuyinhloko kunikeza ukuvikelwa kobuso bemikhiqizo, kudala ingaphandle elivikelayo elilula. Kuvimbela uthuli, uwoyela, umswakama, amanzi, kanye nokwebiwa. Ukupakisha ifilimu yokwelula kusabalalisa ngokulinganayo amandla azungeze izinto ezipakishiwe, kuvimbela ukufuduka kanye nokunyakaza ngesikhathi sokuthuthwa, ikakhulukazi embonini kagwayi neyendwangu, lapho kunemiphumela ehlukile yokupakisha.
(3) Ukonga Izindleko: Ukusebenzisa ifilimu yokwelula ekupakisheni umkhiqizo kunganciphisa ngempumelelo izindleko zokusebenzisa. Ifilimu yokwelula idla cishe u-15% kuphela wephakheji yokuqala yebhokisi, cishe u-35% wefilimu yokunciphisa ukushisa, kanye no-50% wephakheji yebhokisi lekhadibhodi. Iphinde inciphise amandla okusebenza, ithuthukise ukusebenza kahle kwephakheji, futhi ithuthukise amazinga okupakisha.
Ngamafuphi, insimu yokusetshenziswa kwefilimu yokwelula ibanzi kakhulu, kunezindawo eziningi eShayina ezingakahlolwa, kanye nezindawo eziningi ezihloliwe ezingakasetshenziswa kabanzi. Njengoba insimu yokusetshenziswa ikhula, ukusetshenziswa kwefilimu yokwelula kuzokhula kakhulu, futhi amandla ayo emakethe awalinganiswa. Ngakho-ke, kubalulekile ukukhuthaza ngamandla ukukhiqizwa nokusetshenziswa kwefilimu yokwelula.
5.Izicelo ze-PE Stretch Film
Ifilimu yokwelula ye-PE inamandla aphezulu okudonseka, ukumelana nokudabuka, ukucaca, kanye nezakhiwo ezinhle kakhulu zokubuyisa. Njengoba inesilinganiso sangaphambi kokunwebeka esingu-400%, ingasetshenziswa ekufakeni izitsha, ukuvimbela amanzi, ukuvimbela uthuli, ukulwa nokusabalala, kanye nezinjongo zokulwa nokwebiwa.
Ukusetshenziswa: Isetshenziselwa ukugoqa ama-pallet kanye nokunye ukupakisha okugoqayo futhi isetshenziswa kabanzi ekuthunyelweni kwamanye amazwe kwezentengiselwano, ekukhiqizeni ngamabhodlela kanye namathini, ekwenzeni amaphepha, ezintweni zehadiwe kanye nezinto zikagesi, amapulasitiki, amakhemikhali, izinto zokwakha, imikhiqizo yezolimo, ukudla, kanye neminye imboni.
Isikhathi sokuthunyelwe: Okthoba-25-2023